Thermograph 1.3.4

A StuffIt archive of Thermograph is available for download (356k).

Thermograph has a $7 registration fee. You can register online via Kagi.

Thermograph is a utility for monitoring your the processor temperature of any late-model G3 or G4-based Macintosh. Features include:

• Records maximum and minimum temperatures.
• Shows temperature records over time, using a zoomable display so you can analyze short-term or long-term trends.
• Shows individual processor temperatures on multiprocessor models.

Thermograph is only compatible with the latest Macintosh models, such as:

• iMac DV
• iBook
• FireWire PowerBook
• AGP G4's
• Gigabit G4's (including the dual processor systems)
• G4 Cube
• PowerBook G4

Note: Installing Mac OS 9.1 seems to improve compatibility with earlier models.

Note: At this time, Thermograph will not work when run as a Classic application under OS X. You should try ThermographX instead.

Note: Motorola documents the relative accuracy of the temperature measurements from the processor to be ±12°C (21.6°F). Your measurements may vary.

Note: Motorola's MPC7450CE/D Rev 5 errata indicates "The thermal assist unit (TAU) is no longer supported on the MPC7450, MPC7451, or MPC7441.". Because of this, you will not be able to measure the junction temperature on any system with these processors. At current, this includes the "Gigabit" PowerBook G4 and the "2001 Quicksilver" G4's.

Thermograph 1.3.4 (10 August 2001):

• Added model identification for temperature submission feature.

Thermograph 1.3.3 (26 July 2001):

• Adjust calibration math for better results.

Thermograph 1.3.2 (22 May 2001):

• Update identification of "digital audio" G4's.
• Fix math bug applying large negative calibrations.

Thermograph 1.3.1 (11 March 2001):

• Fix bug invoking preferences on dual-processor systems.

Thermograph 1.3.0 (6 March 2001):

• Speed up saving of large amounts of temperature measurements.
• Prevent erroneous temperature readings from being recorded.
• Better identification of models for temperature email submission.
• Added temperature adjustment feature.

Thermograph 1.2.0 (15 January 2001):

• Added temperature notification feature.
• Added temperature submission feature.

Thermograph 1.1.1 (15 November 2000):

• Fixed bug storing graph settings.

Thermograph 1.1.0 (31 October 2000):

• Added new graph options.

Thermograph 1.0.1 (8 August 2000):

• Added keyboard shortcuts for windows.
• Will not run on unsupported systems.
• Fixed bug displaying multiple processor temperatures.

Thermograph 1.0.0 (15 July 2000):

• First release.

jeremy@kezer.net